Duffel bag



FIG. 1 is a top, front, right perspective view of a duffel bag showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof; and,

FIG. 6 is a top view thereof.

The contrast in shading represents a contrast in appearance only and does not represent any particular color, material, texture or finish. The broken lines immediately adjacent to the shaded area represent stitching. The segmented line within the unshaded area represents a zipper. The other broken lines within the unshaded areas represent unclaimed boundaries of the design. 

CLAIM The ornamental design for a duffel bag, as shown and described. 